Baylan YGHP ER34615 User manual

Ultrasonic Heat Meter
User Guide

Ultrasonic Heat Meter
User Guide
Heat Energy Measurement
HEAT METER functions as follow:
Flow Sensor: registers the amount of district heating water in m³/h circulating
through the heating system.
Temperature Sensors: placed in forward and return pipes sense the cooling,
by the difference between in flow and out flow temperatures.
Calculator: calculates heat energy consumption based on flow volume and
temperature loss of heating water.
Permissible operating conditions / measuring ranges
Calculator Θ: 3°C~95°C △Θ: 4K~65K
Temperature sensor pair Θ: 0°C~105°C △Θ: 3K~105K
Flow sensor (heat meter) Θ: 3°C~95°C
Electromagnetic environment
E1 (housing/light industry). The meter’s control cables must be drawn at min.
25 cm distance to other installations.
Mechanical environment
M1 (fixed installation with minimum vibration).
Climatic environment
The meter must be installed in environments with non-condensing humidity as
well as in closed locations (indoors). The ambient temperature must be within
5~55°C.
Maintenance and repair
The district heating supplier can replace temperature sensor and battery. The
flow sensor must not be separated from the calculator.
HEAT METER must be connected to a temperature sensor pair type Pt1000.
Battery for replacement
HEAT METER can be fitted ER34615 battery with operating time of 10 years
at 1 read per day. Lock out feature enabled if excessive reads occur to protect
battery life. If reads are not available please remove battery from meter for 2
minutes to allow manual reset.

Content
1GENERAL INFORMATION.................................................................................................................1
2INSTALLATION .................................................................................................................................1
REQUIREMENTS FOR INSTALLATION ENVIRONMENT ............................................................................2
BEFORE INSTALLATION ................................................................................................................2
MOUNTING OF FLOW SENSOR......................................................................................................3
MOUNTING OF TEMPERATURE SENSORS .........................................................................................3
MOUNTING OF CALCULATOR........................................................................................................5
MOUNTING STEP ......................................................................................................................5
AFTER THE INSTALLATION ............................................................................................................5
3POWER SUPPLY ...............................................................................................................................6
4INTERFACE & COMMUNICATION.....................................................................................................6
RF COMMUNICATION ..................................................................................................................6
LORA COMMUNICATION (OPTIONAL) .............................................................................................6
PULSE OUTPUT(OPTIONAL).........................................................................................................7
5OPERATION & DISPLAY....................................................................................................................8
OPERATIONS ON HOW TO DISPLAY .................................................................................................8
DISPLAY STRUCTURE ................................................................................................................15
MONTHLY DATA ......................................................................................................................16
6ERROR AND WARNING..................................................................................................................16
ERROR DISPLAY.......................................................................................................................16
WARNINGS ............................................................................................................................16
ICONS...................................................................................................................................17
7TRANSPORT AND STORAGE ..........................................................................................................17

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1- General Information
Read this guide before installing the meter.
In case of incorrect mounting YGHP’s guarantee obligations no longer apply.
Please note that the following installation conditions must be obeyed:
Pressure Requirement: PN16/PS16.
Environmental Class: E1, M1, A
Installation requirement: There must be a distance of minimum 25 cm
between signal cables and other installations
If medium temperature is below 10°C or above 90°C in flow sensor, It’s
recommended that the calculator be wall-mounted.
Note: Seal or any safety marks on the meter must not be damaged or
removed, and doing so will void the warranty and calibration of the meter.
2- Installation
Installation diagram

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1
Inflow Pipe
9
Fitting
2
Valve
10
Valve
3
Valve Body
11
Inflow Pipe
4
Thread of
flow sensor
12
Inflow
direction
5
Calculator
13
Return Pipe
6
Thread of
flow sensor
14
Valve Body
7
Inflow Pipe
15
Return Pipe
8
Inflow Pipe
16
Outflow
direction
The below general principles prior to and after mounting the system shall be
followed.
Requirements for installation environment
HEAT METER has been designed for indoor installation in non-condensing
environments with ambient temperatures from 5~55°C.
The meter must not be under any mechanical stress when installed in the
pipe.
The meter must be protected against pressure shocks in the pipe. The
humidity of the mounting environment shall not exceed 85% (without
condensation).
Protection class IP66 allows short-term submergence, provided that all cable
unions have been correctly mounted and that the plastic cover has been
properly fastened.
Make sure the meter is installed sufficiently far away from possible sources of
electromagnetic interference (switches, electric motors, fluorescent lamps,
etc.).
All control cables must be drawn separately and not parallel to e.g. power
cables or other cables with the risk of inducing electromagnetic interference.
There must be a distance of min. 25cm between signal cables and other
installations.
If two or more meters are to be installed shall be in parallel, the axis-center
distance between two meters shall be at least 135mm minimum.

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Before Installation
Prior to installation of the flow sensor, the pipe shall be thoroughly flushed out,
and any dirty, stone alike items must be removed from the pipe. Cavitation in
the system must be avoided. If a risk of frost exists, empty the system and, if
necessary, remove the meter. If the water is soiled, fit the strainer in the pipe
before the meter.
Mounting of Flow Sensor
Consider the dimensions of the heat meter, and the distance with
surroundings, minimum 3 cm free space. Straight sections of 10×DN before
and 5×DN after the meter are recommended, to homogenize the
temperatures of water. The meter is to be installed so that the direction of the
arrow on the meter housing corresponds to the direction of flow. Avoid the
collection of air bubbles in the meter during the installation process.
The connecting pipe at the two ends must be on the same horizontal level.
Install horizontally or vertically only, not tilted, inclined or overhead. Install the
flow sensor into horizontal or up streaming pipelines. Do not install at highest
point of piping to avoid air inside the flow sensor. The flow sensor must NOT
be installed in the positions where swirling flow exists (swirling flow is normally
caused by bending pipe), or pulsatile flow exists (pulsatile flow is normally
caused by pump, therefore the flow sensor must be installed as far as
possible from pump and must not be installed on the outlet of pump) or air
may build up.
Mounting of Temperature Sensors
Temperature sensors used to measure the flow temperature are usually
installed ex-factory, i.e. integrated into the flow pipe. Installation instructions
for sensor used to measure pipe and return temperature are as followings:

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Matched Pairs
The Sensors are colour-coded. The one marked with a red sign is to be
installed in the flow pipe normally within the sensor pocket; the other marked
with a blue sign is to be installed in the return pipe.
The two temperature sensors are a matched pair and must not be separated,
so the sensors must be replaced in pairs. The connecting cables may not be
buckled, extended or shortened.
The standard cable length according to EN1434 or OIML R75 is 1.5m and
must not be changed. If the length has to be changed due to restriction of
installation environment, the meter shall be specially dealt within the factory.
Install Position
The end of the sensors must extend in any case as far as the center of the
pipe cross-section. Installation of the temperature sensors should be
preferably symmetrical and direct installation. Do not remove the flow sensor
if already mounted in the flow sensor.
Temperature sensors are to be installed in the area where water temperature
is relatively stable. The installation conditions for the two sensors shall be
identical. Sensors shall not be installed in the high convex segment of the
pipe. Temperature sensors typically can be installed within Tee pipe, ball valve
or sensor pocket.
Sealing
Temperature sensors and screw connections must be sealed against
manipulation, and the seal may not be damaged.
Attach the O-ring for the installation aid, and insert the O-ring into the
installation point according to with a slight circular motion.
Insert the temperature sensor into the installation point and screw it in tightly
until the dead stop of the seal. Secure the sensor after installation against
unauthorized removal with appropriate sealing.
Generally, the seals have been installed on the meter before delivery from
factory.

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Mounting of Calculator
The calculator is mounted directly on the plate of flow sensor. Having been
mounted, the calculator is sealed with seal and thread. In case of strong
condensation or water temperature above 90 ℃, we recommend wall
mounting of the calculator.
The ambient temperature of the calculator must not exceed 55°C and it
should avoid direct sunlight. Mounting can be vertical or horizontal with
respect to the flow sensor.
Mounting Step
Step 1: Flush the piping system thoroughly before mounting the meter.
Step 2: Sufficient distance.10×DN straight pipe in upstream and 5×DN straight
pipe in downstream. (DN: Diameter)
Step 3: The specific seal gasket and connector only supplied by Baylan Water
Meters.
Step 4: On the two sides of the meter, there should be one filter (if the water is
soiled) and two shut-off valves.
Step 5: After finishing the above operations, seal the meter only if the sealing
has not been done before delivery from factory.
After the installation
The tightness must be proved by pressurizing with cold water, slowly filling the
pipe on completion of the installation.
Open the shut-off valves carefully and check installation for leakage. While the
piping system is operating, check whether the volume display correctly and
the temperatures display corresponding with the actual temperatures (see the
display information). When the response thresholds are exceeded and the
flow rate and temperature difference are positive, the energy and the volume
are summated.
Make the segment test, in order to displays all display segments for test
purposes.
The operating hours are counted from initial connection of the battery. The
date is incremented daily. As a standard the meter is delivered with the local
time, or destination time if required.

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3- Power supply
HEAT METER can be fitted ER34615 battery with operating time of 10 years at 1 read per day.
Type
Lithium Battery
Model No.
ER34615
Size
D Size
Rated capacity
19000mAh
Rated voltage
3.6V
Max recommended
continuous operating current
230mA
Max pulse current
400mA
Reference weight
100g
Max dimension
33.1×61.5mm
Operating temperature
-60°C～+85°C
4- Interface & Communication
RF Communication
Automatic meter reading with RF (Radio Frequency)
Center Frequency : 868 Mhz (Works in AT approved ISM/SRD Frequency)
Protocol: Wireless Mbus (wM-BUS)
Modulation : GFSK
Transmitter output power : Adjustable up to +14dB
Communication Speed : 1.2-250 kbps
Communication Type : Bidirectional
Real time clock (IEC 61038 approved)
LoRa Communication(Optional)
Automatic meter reading with LoRa (Long Range RF)
Center Frequency : 868 Mhz (Works in AT approved ISM/SRD Frequency)
Protocol: LoRaWAN
Modulation : LoRa

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Transmitter output power : Adjustable up to +20dB
Communication Speed : 250 and 5470 bps
Communication Type : Bidirectional
Real time clock (IEC 61038 approved)
Pulse Output(Optional)
Pulse output for heat or volume, with 2m cable connected, with galvanic
isolation
Pulse significance: 1 pulse per kWh, or 1 pulse per 100 litre.
Pulse length: 100 ms (Programmable)
Heat / Volume: specify in order or change with service-software
Voltage: max. 30 V
Current: max. 30 mA
Pulse break: min. 25ms
Classification OB (acc. to EN 1434-2)
Voltage drop: ca. 1.3V at 20 mA

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5- Operation & Display
HEAT METER is fitted with an easily readable LCD, including one description
line and one line for max. 13 digits, measuring units and information field.
The display automatically returns to LCD semi-sleep mode 3 seconds after
the latest activation of the push button. When power on, the meter will reset
and displays full screen to allow users to detect if there is any problem with
the LCD.
Fig. Display full segments
Operations on how to display
Users may press the button to read the meter information such as
Accumulated volume, current flow rate, water temperature, etc.
To save the battery, the meter switches to semi-sleep mode (display backlight
off) if the button is not pressed for approx. 3 seconds. It can be woken up by
pressing the button shortly.
The following information is displayed in order by shot pressing the button:
cumulative heat consumption, instant heat power, temperature high,
temperature low, temperature difference, cumulative flow volume, instant flow
rate, remaining credit, utility name, meter ID, consumer ID, consumer type,
loaded credit, tariff info, step info, warning and penals, software version,
hardware version, diameter, time, continuous working time, etc.
Wakeup Operation
If no any operations within 3 seconds, it will turn back to semi-sleep mode.
Press the button shortly to wake up the LCD from semi-sleep mode.

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Menu List (User Loop)
Pressing the button and hold it on for 5 seconds at the cumulative heat
consumption screen will change the menu to ‘A2: Monthly Value’.
Pressing the button and hold it on for 5 seconds at the any other screens will
change the menu to ‘A3:Test Mode’.
For turning back to ‘A1: Main Menu’ press the button and hold it on for 5
seconds while the menu at A1 or A2.
Information Screen
Accumulated heat consumption
Instant Power
Water-in temperature
Water-out temperature

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Temperature difference
Instant flow rate
Accumulated flow
Remaining Credit
Loaded Credit (Amount, Time-Date)
Municipality Name
Step Rate

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Tariff Rate
Consumer Type
Version/Time/Diameter
Accumulated working hour
Meter ID
Consumer ID
Menu A2: Monthly Value
This Menu shows history date records of last 15 months. Click the button to
select the month, then the month, monthly flow and monthly heat consumption
will be displayed in turn.

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Menu A4
The contents are similar to Menu A1, but for calibration only. The following
diagram shows MenuA4 (Calibration mode only).
Information Screen
Accumulated heat consumption
Instant Power
Water-in temperature
Water-out temperature
Temperature difference

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Instant Power
Instant flow rate
Accumulated flow
Remaining Credit
Loaded Credit (Amount, Time-Date)
Municipality Name
Step Rate

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Tariff Rate
Consumer Type
Version/Time/Diameter
Accumulated working hour
Meter ID
Consumer ID
Monthly Data
The calculator stores the following values for 15 months at each end of month
- Heat Energy (meter reading)
- Volume (meter reading)
Press the service button at Consumption screen for 3s to enter and see the
monthly consumption values.

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Display Structure
1.0 A1
1.1 General Information Screen
1.2 Accumulated heat consumption
1.3 Instant heat power
1.3 Water high temperature
1.4 Water low temperature
1.5 Temperature difference
1.6 Accumulated flow volume
1.7 Instant flow rate
1.8 Remaining Credit
1.9 Utility Name
1.10 Meter Id
2.0 A2
2.1 The monthly heat
consumption and The
monthly water
consumption
3.0 A3 (calibration and test only)
3.1 General Information Screen
3.2 Accumulated heat consumption
3.3 Instant heat power
3.3 Water high temperature
3.4 Water low temperature
3.5 Temperature difference
3.6 Accumulated flow volume
3.7 Instant flow rate
3.8 Remaining Credit
3.9 Utility Name
3.10 Meter Id

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6- Monthly Data
The calculator stores the following values for 15 months at each end of
month
-Heat Energy (meter reading)
- Volume (meter reading)
Error and Warning
Error Display
The meter constantly performs self-diagnosis and can display various faults.
Visual indication on the LCD display in the event of an error
7- Warnings
Permanent visual indication on the LCD:
1) Fault / failure of ultrasonic or temperature measurement
2) Low temperatures (below 3 °C)
3) Air in the measuring path, no volume measurement
4) Low battery
1.11 Consumer Id
1.12 Consumer Type
1.13 Loaded Credit
1.14 Tariff Info
1.15 Step Info
1.16 Warning and Penals
1.17 Software Ver./ Hardware Ver./
Daimeter/ Time
1.18 Continuous working time
3.11 Consumer Id
3.12 Consumer Type
3.13 Loaded Credit
3.14 Tariff Info
3.15 Step Info
3.16 Warning and Penals
3.17 Software Ver./ Hardware Ver./
Daimeter/ Time
3.18 Continuous working time

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Icons:
8- TRANSPORT AND STORAGE
Heat meters are precision devices and must be protected against impact and
vibration. Store meters in a frost-free place (also during transport). The meter
can be damaged by frost. Never hold and transport the meter by the
calculator but only by the flow pipe. Pay attention to sharp edges like thread,
etc.